Matches in DBpedia 2014 for { ?s ?p International Workers' Day, also known as Labor Day or May Day, is a celebration of laborers and the working classes that is promoted by the international labor movement and occurs every year on May 1. May 1 was chosen as the date for International Workers' Day by the Socialists and Communists of the Second International to commemorate the Haymarket affair in Chicago that occurred on May 4, 1886.. }
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- International_Workers'_Day comment "International Workers' Day, also known as Labor Day or May Day, is a celebration of laborers and the working classes that is promoted by the international labor movement and occurs every year on May 1. May 1 was chosen as the date for International Workers' Day by the Socialists and Communists of the Second International to commemorate the Haymarket affair in Chicago that occurred on May 4, 1886.".